forked from luck/tmp_suning_uos_patched
b15f5f1ae1
The pointer foo is local to the source and does not need to be in global scope, so make it static. Cleans up sparse warning: symbol 'foo' was not declared. Should it be static? Link: http://lkml.kernel.org/r/20180624112206.5722-1-colin.king@canonical.com Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
50 lines
918 B
C
50 lines
918 B
C
#include <linux/kernel.h>
|
|
#include <linux/module.h>
|
|
#include <linux/export.h>
|
|
#include <linux/mm.h>
|
|
#include <linux/vmalloc.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/sizes.h>
|
|
|
|
#include <asm/page.h>
|
|
#ifdef CONFIG_MIPS
|
|
#include <asm/bootinfo.h>
|
|
#endif
|
|
|
|
struct foo {
|
|
unsigned int bar;
|
|
};
|
|
|
|
static struct foo *foo;
|
|
|
|
static int __init test_debug_virtual_init(void)
|
|
{
|
|
phys_addr_t pa;
|
|
void *va;
|
|
|
|
va = (void *)VMALLOC_START;
|
|
pa = virt_to_phys(va);
|
|
|
|
pr_info("PA: %pa for VA: 0x%lx\n", &pa, (unsigned long)va);
|
|
|
|
foo = kzalloc(sizeof(*foo), GFP_KERNEL);
|
|
if (!foo)
|
|
return -ENOMEM;
|
|
|
|
pa = virt_to_phys(foo);
|
|
va = foo;
|
|
pr_info("PA: %pa for VA: 0x%lx\n", &pa, (unsigned long)va);
|
|
|
|
return 0;
|
|
}
|
|
module_init(test_debug_virtual_init);
|
|
|
|
static void __exit test_debug_virtual_exit(void)
|
|
{
|
|
kfree(foo);
|
|
}
|
|
module_exit(test_debug_virtual_exit);
|
|
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_DESCRIPTION("Test module for CONFIG_DEBUG_VIRTUAL");
|